20193433 has 8 divisors (see below), whose sum is σ = 23026248. Its totient is φ = 17543424.

The previous prime is 20193421. The next prime is 20193451. The reversal of 20193433 is 33439102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8277129 + 11916304 = 2877^2 + 3452^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20193433 - 2¹³ = 20185241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20193398 and 20193407.

It is not an unprimeable number, because it can be changed into a prime (20193463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45466 + ... + 45907.

It is an arithmetic number, because the mean of its divisors is an integer number (2878281).

Almost surely, 2^20193433 is an apocalyptic number.

It is an amenable number.

20193433 is a deficient number, since it is larger than the sum of its proper divisors (2832815).

20193433 is a wasteful number, since it uses less digits than its factorization.

20193433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91403.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 20193433 is about 4493.7103823010. The cubic root of 20193433 is about 272.3140520833.

The spelling of 20193433 in words is "twenty million, one hundred ninety-three thousand, four hundred thirty-three".